Respuesta :

Answer:

79

Step-by-step explanation:

QR=TS

9a+43=a+75

-43 from each side

9a= a+32

8a=32

a=4

QR=9a+43=79

Answer:

79

Step-by-step explanation:

In Parallelogram, opposite sides are equal.

So,

QR = ST

QR = 9a + 43

ST = a + 75

Since, QR = ST

9a + 43 = a + 75

9a - a = 75 - 43

8a = 32

a = 32 / 8

a = 4

QR = 9a + 43

= 9 ( 4 ) + 43

= 36 + 43

QR = 79